Oil control for oil burners



March 17, 1925. 1,530,422

H. M. SHEER OIL CONTROL FOR OIL BURNERS Filed May 25. 1922 a N ENTOR. af a ATTOR EYS.

Patented Mar. 17, 1925.

UNITED 4 STATES PATENT OFFICE.

HENRY M. sum or QUINCY, ILLINOIS, essrenoa TO 11. M. snnnaoommnr, or

QUINCY, ILLINOIS, A CORPORATION OF ILLINOIS.

OIL CONTROL r03 OIL nunnnns.

Application filed May 25, 1922. Serial No. 563,548.

To all whom it may 0012mm:

Be it known that I, HENRY M. SHEER, a citizen of the United States, residing at Quincy, in the county of Adams and State of Illinois, have invented certain new and useful Improvements in Oil Controls for Oil Burners, of which the following is a specification,

My invention relates to an improvement in oil controls for oil burners.

The main object is to provide a uniform flow of oil to the flame, so that there will be no fluctuation in the flame as the oil from the main reservoir is fed. To accomplish this, it is necessary to prevent the oil which feeds out of the reservoir from producing any pressure in the chamber or pipe which carries the .oil to the burner. For this reason, the main oil chamber "must be well ventilated, so that the passage of oil from a cup having a small outlet produces no pressure whatever against the oil. The oil simply flows into the main chamber, raising the oil level in the chamber so slowly that there is no perceptible increase of the pressure of oil against the flame.

Owing to the fact that the oil level in the auxiliary chamber is always maintained at just a little higher level than it is in the main oil chamber, the oil level in the main chamber remains practically the same, and the pressure of oil against the flame is constant.

In other words, in my present invention, the oil is controlled by first passing into an auxiliary chamber in the form ofa small cup, which latter is placed in a main oil chamber, and the oil level in the cup and in the main chamber is maintained at ractically the same level. As the oil is de ivered from the main reservoir into the cup, it cannot flow from the same as fast as it is delivered, and as the outlet i: small the reservoir delivers a very small quantity at a time. As this oil gradually flows into the main chamber, the level is brought down to that point where the main reservoir will feed again, in fact when the heater is in o eration the oil continually remains a little higher in the'cup' than it is in the main chamber.

To accomplish this, the cup has a small opening in the side a little aboveits bottom. As the oil feeds into this auxiliary cup from the main reservoir, the oil must slowly flow through the small opening into the main oil chamber, and the main reservoir will continue to feed until the oil in the main oil chamber is brought approximately to the same height as the oil in the cup.

In the accompanying drawings:

Fig. 1 is a sectional view of the oil control;

F1g. chamber or cup.

In the drawing, A is to represent the glass Jug; B, the valve; C, the metal oil chamber which supports the bottle; D, is a cup into which the bottle delivers oil; and E, is an opening at theside of the. cup D through which the oil slowly flows into the chamber C. I I A The area of the cup D is considerably less than the area of the chamber C, and, as a consequence, the oil flowing slowly through the opening E will not produce a rapid rise of the oil in chamber C, in fact hardly disturbs this oil to any noticeable extent.

Consequently, there is no fluctuation of the flame when the bottle A delivers oil into cup D. As the opening E is quite small, the oil flows throughdt slowly, and hence the oil level in the cup D is always somewhat higher than it is in the chamber C.

When this combination is employed, the bottle A delivers oil into the cup D quite often, a small amount at a time. There is a maximum amount of oil which must be delivered every time the bottle A takes air through the valve B.

If one discharge of oil does not bring the oil level up to the valve opening, the oil will be discharged a second and even a third time.

This condition is one of the serious objections to feeding the oil direct into the large chamber C. When the bottle starts to deliver oil into the chamber, it will make several deliveries :before the oil level is raised sufiiciently to close the valve opening, a din the meantime, the rush of oil out of the ottle disturbs the oil in the chamber C and produces pressure against the oil at the burner.

The result is that the flame is almost certain to flare up every time the bottle feeds and as a rule will die down quite small by the time the bottle is ready to feed again, since the bottle is delivering oil in accordance with the oil level in the chamber 0.

With the combination, as shown in the en-' 2 is a plan view of the auxiliary oil tate or disturb the oil in the chamber C.

A. fine gauze strainer can be placed in the cup D, to prevent dirt or foreign matter from getting to the opening E.

The opening E in the cup D is located preferably about midway between the bottom of the cup and the top of the oil level, the heavier elements will settle to the bottom-of the cup, while the lighter ones will float on top of the oil, leaving the oil practically clear at the opening E.

The cup can be lifted out and drained or cleaned every time the bottle is filled, should this be found necessary.

While it is my practice to employ substantially the same method of raising and lowering the oil chambers as set forth in application Serial N 0. 523080, filed Dec. 17, 1921, for instance, still I do not wish to confine the present idea to this adjustment alone, since it will work just as Well on that class of heaters where the burner is raised and lowered For this reason, I want to cover, as broadly as possible, the idea of de livering the oil from the bottle into the small auxiliary cup from which it is slowly delivered into the larger chamber.

I claim:

1. Means for feeding a uniform flow of oil to a flame, consisting of a main oil chamber, an auxiliary oil chamber having a small opening between its top and bottom to allow the oil to flow slowly from the auxiliary oil chamber to the main oil chamber, a main oil supply having a valve at its lower end in position to be opened by the auxiliary oil chamber when in operative position.

2. The combination with a main oil chamber having a ledge therein, of a cup removably supported on the ledge and in communication with the main oil chamber, and a main oil supply removably supported on the main oil chamber and having a valve which extends into the auxiliary oil chamber and is raised by striking the bottom of the latter when the main oil supply, main oil chamber and auxiliary oil chamber are assembled and in operative osition.

In testimony whereof I my signature.

HENRY M. SHEER. 

